Fuel Level Sensor Unit Check

WARNING: This page is about a different car, the 2012 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

For removal, refer to , "REMOVAL AND INSTALLATION ".

Check Fuel Level Sensor Unit and Fuel Pump

Check resistance between terminals 2 and 5.

Terminals		Float position mm (in)			Resistance value (Ω) (Approx.)
2	5	1*	Full	144.4 (5.69)	5
2	5	2*	Empty	11.6 (0.46)	81.5
1* and 2*: When float rod is in contact with stopper.

Fig 1: Checking Fuel Level Sensor Unit

Courtesy of NISSAN NORTH AMERICA, INC.

Check Fuel Level Sensor Unit and Fuel Pump Harness

Check continuity at the following terminals.

Terminal	Continuity
2 - Signal terminal (A)	Yes
5 - Ground terminal (B)	Yes

Fig 2: Checking Fuel Level Sensor Unit

Courtesy of NISSAN NORTH AMERICA, INC.

If the results of check are NG, replace fuel pump assembly. If the results of check are OK, replace fuel level sensor unit.